/*
 * Copyright 2016 Code Above Lab LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.codeabovelab.dm.common.utils;

/**
 */
public class Comparables {
    /**
     * Compare comparable objects, correct handle nulls.
     * @return
     */
    public static <T extends Comparable<T>> int compare(T left, T right) {
        if(left == right) {
            return 0;
        }
        if(left == null) {
            return -1;
        }
        if(right == null) {
            return 1;
        }
        return left.compareTo(right);
    }
}
